What these nonmetals which one is likely to be the least reactive nitrogen (N) phosphorous (P) sulfur (S) oxygen (O)?

Nitrogen (N) is likely to be the least reactive among the nonmetals listed. It is a diatomic gas with a stable triple bond that makes it less reactive compared to phosphorus (P), sulfur (S), and oxygen (O) which are more readily reactive due to their lower bond strengths.